Indiana Administrative Code
Title 675 - FIRE PREVENTION AND BUILDING SAFETY COMMISSION
Article 14 - ONE AND TWO FAMILY DWELLING CODE
Rule 4.4 - 2020 Indiana Residential Code
Section 4.4-78 - Table R703.8.4(1); tie attachment and airspace requirements

Universal Citation: 675 IN Admin Code 4.4-78

Current through March 20, 2024

Authority: IC 22-13-2-2; IC 22-13-2-2.5; IC 22-13-2-13

Affected: IC 22-12; IC 22-13; IC 22-14; IC 22-15; IC 36-7

Sec. 78.

Change TABLE R703.8.4(1) to read as follows:

TABLE R703.8.4(1)
TIE ATTACHMENT AND AIRSPACE REQUIREMENTS
BACKING AND TIE MINIMUM TIE MINIMUM TIE FASTENERa AIRSPACEc
Wood stud backing with corrugated sheet metal 22 U.S. gage (0.0299 in.) x 7/8 in. wide 8d common nailb (2 1/2 in. x 0.131 in.) 3/4 in. minimum between sheathing and veneer
Wood stud backing with metal strand wire W1.7 (No. 9 U.S. gage; 0.148 in.) with hook embedded in mortar joint 8d common nailb (2 1/2 in. x 0.131 in.) 3/4 in. minimum between sheathing and veneer Maximum 4 1/2 in. between backing and veneer
Cold-formed steel stud backing with adjustable metal strand wire W1.7 (No. 9 U.S. gage; 0.148 in.) with hook embedded in mortar joint No. 10 screw extending through the steel framing a minimum of three exposed threads 3/4 in. minimum between sheathing and veneer Maximum 4 1/2 in. between backing and veneer

For SI: 1 inch = 25.4 mm.

a. In seismic design category D0, D1, or D2, the minimum tie fastener shall be an 8d ring-shank nail (2 1/2 in. x 0.131 in.) or a No. 10 screw extending through the steel framing a minimum of three exposed threads.

b. All fasteners shall have rust-inhibitive coating suitable for the installation in which they are being used, or be manufactured from material not susceptible to corrosion.

c. Mortar is permitted to encroach into the airspace or make incidental contact with the sheathing or the sheathing paper or equivalent.

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